|  | 
			
				| 
			
				|   | 
				 
				Pentode 
				Introduced in 1933 
					
						| 1 | 2 | 3 | 4 | 5 | base |  
						| a | f | f | g1 | g2 | B5 |    
					
						| Vf | Af | Va | Vs | Vg | mAa | mAs | ra | gm | Pout | Pdiss |  
						| 4 | 0.9 | 400 | 300 | -30 | 28 | 6.8 | 33,000 | 1.8 | 3 | 9 |  
					
						| Equivalent | 5-443, D1004, DW11, DW3, E443, 
						491D, PM24C, PM24M, PP4100, PP4101, RES664D,
						RES964, RS4543, 
						T1304, TE43H, 
						TV4110, W443H, W516,
						WE30 |  |  |  |